[vsnet-alert 9340] GW Lib: stronger superhump signal

Taichi Kato tkato at kusastro.kyoto-u.ac.jp
Sat May 12 11:13:04 JST 2007


   We have received more observations (primarily after the
rapid fading) from Berto Monard, Nakajima-san, KANATA team
and others.  As reported by Uemura-san, large-amplitude
superhumps emerged recently.  The superhumps since May 8
seem to be well expressed by a period of 0.05428(4) d.
Although period variation and rather complex behavior of
the light curve make unique phase identification
difficult, the present humps look like to be present at
phases of usual superhumps, rather than late superhumps.
Such a growth of "superhump"-type signal was observed
before rebrightenings of WZ Sge.  We may expect to see
similar rebrightenings in coming days.


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